Monthly outlook for Harrison, ME: average high 60.9°, average low 43.7°. That is 2.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 5 days and 2.4 inches. The warmest day looks like 17 October (82.2°), the coolest 15 October (33°).
60.9°/43.7°
Average high / low
+2.7°
Above normal
2 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
62.9°
57.2°
+3.2°
18 October – 27 October
57.6°
53.5°
+2.3°
28 October – 6 November
at normal
49.7°
—
October records over 66 years
83.8°6 October 2025All-time high
16.5°30 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Lovell (14 mi).
Fri, 0959° / 38°0
59 °
Harrison, Friday, 9 October
Light rain. High 59°, low 38°.
Pressure29.97 inHg
Wind10.7 mph W
Humidity50%
Visibility6.2 mi
Dew point40°
Sat, 1057° / 38°0
57 °
Harrison, Saturday, 10 October
Clear. High 57°, low 38°.
Pressure30.42 inHg
Wind8.4 mph NW
Humidity43%
Visibility6.2 mi
Dew point29°
Sun, 1164° / 38°0
64 °
Harrison, Sunday, 11 October
Overcast. High 64°, low 38°.
Pressure30.33 inHg
Wind7.8 mph S
Humidity51%
Visibility6.2 mi
Dew point41°
Mon, 1264° / 52°0
64 °
Harrison, Monday, 12 October
Overcast. High 64°, low 52°.
Pressure29.85 inHg
Wind9.1 mph SW
Humidity65%
Visibility—
Dew point49°
Tue, 1365° / 48°0.12
65 °
Harrison, Tuesday, 13 October
Light rain. High 65°, low 48°.
Pressure29.47 inHg
Wind9.5 mph SW
Humidity86%
Visibility—
Dew point54°
Wed, 1449° / 41°0.01
49 °
Harrison, Wednesday, 14 October
Light rain. High 49°, low 41°.
Pressure29.71 inHg
Wind20.6 mph NW
Humidity54%
Visibility—
Dew point30°
Thu, 1555° / 33°0
55 °
Harrison, Thursday, 15 October
Clear. High 55°, low 33°.
Pressure30.21 inHg
Wind5.7 mph SW
Humidity38%
Visibility—
Dew point25°
Fri, 1666° / 47°0.03
66 °
Harrison, Friday, 16 October
Light rain. High 66°, low 47°.
Pressure30.09 inHg
Wind7.6 mph SW
Humidity55%
Visibility—
Dew point40°
Sat, 1782° / 60°0.13
82 °
Harrison, Saturday, 17 October
Light rain. High 82°, low 60°.
Pressure30.09 inHg
Wind6.9 mph E
Humidity66%
Visibility—
Dew point62°
Sun, 1865° / 53°0.03
65 °
Harrison, Sunday, 18 October
Light rain. High 65°, low 53°.
Pressure30.21 inHg
Wind6.3 mph SW
Humidity97%
Visibility—
Dew point53°
Mon, 1957° / 53°0
57 °
Harrison, Monday, 19 October
Overcast. High 57°, low 53°.
Pressure30.12 inHg
Wind5.7 mph N
Humidity83%
Visibility—
Dew point52°
Tue, 2057° / 43°0
57 °
Harrison, Tuesday, 20 October
Overcast. High 57°, low 43°.
Pressure30.09 inHg
Wind4.6 mph SW
Humidity66%
Visibility—
Dew point41°
Wed, 2155° / 41°0.02
55 °
Harrison, Wednesday, 21 October
Light rain. High 55°, low 41°.
Pressure29.88 inHg
Wind10.2 mph NW
Humidity61%
Visibility—
Dew point40°
Thu, 2256° / 34°0
56 °
Harrison, Thursday, 22 October
Partly cloudy. High 56°, low 34°.
Pressure30.18 inHg
Wind4.9 mph NW
Humidity50%
Visibility—
Dew point29°
Fri, 2355° / 35°0
55 °
Harrison, Friday, 23 October
Overcast. High 55°, low 35°.
Pressure30.36 inHg
Wind8.3 mph S
Humidity58%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2454° / 38°0.15
54 °
Harrison, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.15 in
Chance of precipitation38%
Record high76° (1963)
Record low23° (1969)
Sun, 2553° / 39°0.19
53 °
Harrison, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.19 in
Chance of precipitation37%
Record high77° (1963)
Record low27° (1982)
Mon, 2652° / 38°0.17
52 °
Harrison, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.17 in
Chance of precipitation32%
Record high76° (1963)
Record low27° (2018)
Tue, 2752° / 38°0.13
52 °
Harrison, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.13 in
Chance of precipitation28%
Record high76° (2023)
Record low26° (1976)
Wed, 2852° / 37°0.2
52 °
Harrison, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.2 in
Chance of precipitation33%
Record high76° (2023)
Record low25° (1976)
Thu, 2951° / 35°0.13
51 °
Harrison, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.13 in
Chance of precipitation32%
Record high69° (1989)
Record low26° (1965)
Fri, 3049° / 35°0.22
49 °
Harrison, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.22 in
Chance of precipitation27%
Record high69° (1989)
Record low17° (1962)
Sat, 3151° / 35°0.12
51 °
Harrison, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.12 in
Chance of precipitation28%
Record high74° (2024)
Record low24° (2002)
Sun, 0151° / 36°0.13
51 °
Harrison, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.13 in
Chance of precipitation32%
Record high70° (2024)
Record low27° (1972)
Mon, 0250° / 36°0.19
50 °
Harrison, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.19 in
Chance of precipitation37%
Record high65° (2001)
Record low20° (2002)
Tue, 0350° / 36°0.27
50 °
Harrison, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.27 in
Chance of precipitation43%
Record high66° (1990)
Record low18° (2002)
Wed, 0449° / 35°0.09
49 °
Harrison, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high68° (2022)
Record low24° (1963)
Thu, 0548° / 35°0.19
48 °
Harrison, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.19 in
Chance of precipitation40%
Record high73° (2022)
Record low22° (1965)
Fri, 0648° / 36°0.16
48 °
Harrison, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.16 in
Chance of precipitation38%
Record high73° (2024)
Record low26° (1962)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Harrison, ME are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Harrison, ME since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.